US3865033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-color dye-transfer apparatus
Assignee: Fujifilm Holdings Corp
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Filing: 1973-10-24
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Granted: 1975-02-11
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Expires: 1993-10-24
Abstract
Abstract Apparatus for dye-transferring color images, comprising a plurality of rotatable drums driven at the same angular velocity for supporting a matrix thereon, the diameter of each drum being larger than the drum disposed upstream thereof in the dyetransfer process and the matrices are incrementally larger in dimension corresponding to the drum periphery in downstream order. A plurality of dye solution supplying devices are provided adjacent the drums to supply different colors of dyes to the drums, and a plurality of press rollers are disposed in contact with the drums to urge the material to be dye-transferred into contact with the drums for a predetermined time period. In this manner, a multi-color image may be dye-transferred to the material without color displacement.
Inventors
- 👤 Seiichi Taguchi
- 👤 Sigeru Tezuka
- 👤 Takeshi Tomotsu
- 👤 Eiichi Mizuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:52
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/22; G03C7/25; G03B; G03B27/00; G03B27/02; G03B27/04; G03B27/08
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
183 words
In an apparatus for transferring multiple color dye images in superimposed fashion, in sequence, on a tensioned moving web, during which the web becomes water saturated and stretches longitudinally, said apparatus including: a plurality of rotatable drums, each drum supporting a matrix on its periphery, means for driving the drums at the same angular velocity, dye solution supplying devices operatively associated with said drums to supply a different color dye to respective drum matrices, and a plurality of press rollers disposed in contact with the web and pressing the web into peripheral contact with the drums for a prescribed duration, the improvement wherein: the diameters of successive drums increase in the direction of web movement in direct proportion to the longitudinal stretch of the web caused by water saturation during image transfer to compensate for web stretching and prevent slack from occurring within the web from drum to drum, and thereby maintain full web contact with the drums to improve registration of the superimposed color dye images transferred from the various matrices to the web during movement of said web through said apparatus.
Claim 2
Dependent Claim
183 words
In an apparatus for transferring multiple color dye images in superimposed fashion, in sequence, on a tensioned moving web, during which the web becomes water saturated and stretches longitudinally, said apparatus including: a plurality of rotatable drums, each drum supporting a matrix on its periphery, means for driving the drums at the same angular velocity, dye solution supplying devices operatively associated with said drums to supply a different color dye to respective drum matrices, and a plurality of press rollers disposed in contact with the web and pressing the web into peripheral contact with the drums for a prescribed duration, the improvement wherein: the diameters of successive drums increase in the direction of web movement in direct proportion to the longitudinal stretch of the web caused by water saturation during image transfer to compensate for web stretching and prevent slack from occurring within the web from drum to drum, and thereby maintain full web contact with the drums to improve registration of the superimposed color dye images transferred from the various matrices to the web during movement of said web through said apparatus.
Claim 3
Dependent Claim
31 words
The apparatus as claimed in claim 1, wherein the matrices are of increased circumferential length, corresponding to drum diameter, progressively in the direction of web movement to further improve multi-image registration.
References Cited (Backward Citations)
US870210A
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US2809582A
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US3025791A
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US3044396A
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US3252415A
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US3633504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |